605723431 has 2 divisors, whose sum is σ = 605723432. Its totient is φ = 605723430.

The previous prime is 605723429. The next prime is 605723467. The reversal of 605723431 is 134327506.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 605723431 - 2¹ = 605723429 is a prime.

It is a super-2 number, since 2×605723431² = 733801749724823522, which contains 22 as substring.

Together with 605723429, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 605723393 and 605723402.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (605723471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 302861715 + 302861716.

It is an arithmetic number, because the mean of its divisors is an integer number (302861716).

Almost surely, 2^605723431 is an apocalyptic number.

605723431 is a deficient number, since it is larger than the sum of its proper divisors (1).

605723431 is an equidigital number, since it uses as much as digits as its factorization.

605723431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15120, while the sum is 31.

The square root of 605723431 is about 24611.4491852877. The cubic root of 605723431 is about 846.1060320316.

The spelling of 605723431 in words is "six hundred five million, seven hundred twenty-three thousand, four hundred thirty-one".